First time cleaning my PC.. need Help!

Another vote for the Data Vac. Pays for itself over and over compared to canned air and no propellant to leave moisture in your computer.

doorules said:

Used one for 10 years plus with zero issues. Don't know what else to say about that. :)

Wow I would say that your the exception.. good for you. Because I would bet that most people who have made the mistake of using a shop air compressor thats not properly set up to blow out a pc probably found out the hard way what dirty moisture and 90psi of air pressure does to a pc.
And I'm not trying to say the best method to clean a pc is to use air cans, what i meant by what I said was if you have to use air it would be better to use air cans than using a shop compressor. Thought I should clear that up.

I've used my air compressor since DOS days to blow out PC's and never had any problems from it.